} > For defense against bio and nano immune systems probably are the best
} > way to go. Best would be mutable systems that could be changed to small
} > or large degrees.
}
} Freely self replicating mutating nanomachines? sounds like a shure way to
} Gray Goo.

Systems can be mutable without changing the components much. And where
did I say 'freely'? Each person could change their own immune system,
certainly. Not the same.

Anyway, I'm not particularly scare of gray goo. Possibly some
unrestricted disassembler could chomp the biosphere, but I don't take
even that as given. And if we have nanimmune systems of our own, I see
no reason to believe one species could take over the nanosphere any more
than one species has taken over the biosphere. (Besides us, but we're
intelligent.)

} into the design software for nanotech. Perhaps make shure that the software
} wouldn't build any kind of assembler that could exist in oxygen.